Tsuki ga Michibiku Isekai Douchuu - Chapter 1: Standing on a new world

One morning, after being bound to the system, MC started his routine of always being captured/ attacked by the ML.

I was betrayed in my first life.A cripple, broken and discarded—I died after catching the one I loved in bed with the only person I ever called a friend.That was the start of real torment.When I woke up, it was in another world.A goddess stood before me.She told me I could go back.Back to my world.Back to everything I lost.All I had to do… was play my part.The side character.And I did.I followed the script.Played my role to perfection.They hated me.Mocked me.Used me.Again and again.But I kept going. Because I believed her.Because I wanted to go home.Then one day, I found out.The hard way.It was all a lie.There was no going back.There never was.She used me.Again.Just like everyone else.Thrown away like trash once I outlived my usefulness.That was the day something inside me snapped.And so, I made a vow.I would take everything from her.I would enslave every single heroine she chose.And I would kill the hero she placed all her hopes on.If she wanted to protect this world…Then I would burn it down.But the more I tried, the more things started to change.And then one day—I found one of the heroines.One of the hero's yanderes I had enslaved.She stood there, trembling, a knife in her hand.“You’re not going anywhere,” she whispered, eyes wild.“I won’t let them have you. You belong to me.”...What. The. Fuck. Is. Happening?!

In a certain empire, a young prince was born with a golden pickaxe. It should have been seen as a miracle or a blessing, but instead, the emperor wanted nothing to do with the child. He refused to accept a prince blessed with what he considered a commoner’s job, fearing it would taint his royal bloodline.Abandoned by his own parents, the young boy, Shennong, was taken in by a succubus.But neither the succubus nor the emperor knew the truth about him—Shennong was no ordinary child. He was a reincarnator.This is the story of how the world of Matay reacts to the birth of the first Sandboxer, a class unknown to many. Will Shennong forgive those who abandoned him? What was the purpose of his reincarnation in this world? What is the true nature of the golden pickaxe, and what does it mean for Shennong?One thing is certain—Shennong is not alone in this world because he had a true sandbox system and people to support him even in this world.Join him and experience a true sandbox adventure!

After rebirth, Long Xiaoyuan went into raptures because he was in poor health in his previous life. However, he suddenly found that his soul was in the body of a fatuous and self-indulgent emperor.

This fatuous emperor put sycophants in important positions while executed the faithful and the upright!

This merciless emperor married the son of a general and kept torturing him!

How could he be reborn as such a person?

The empress was pretty handsome and smart. Since the former soul of the emperor didn’t cherish such an excellent man, Long Xiaoyuan would love the guy and save himself by the way!

- Description from Novelupdates